Improvement in pumps



UNITED STATES PATENT OEEICE.

LYSANDER BUTTON AND ROBERT BLAKE, OF WTATERFORD,N13T YORK.

IMPROVEMENT IN PUMPS.

Specification forming part of Letters Patent No. 35,07), dated April T29, 13672.

To all whom t may concern:

Be it known that we, LYSANDEE BUTToN and ROBERT ILAKE, of \Vaterl"ord, in the county ot' Saratoga and State of New York, have invented a certain new and useful l1nproven'len t 'in Fulnps; and we do hereby declare that the following is a full, clear, and exact description of the con struction and operation of the saine, reference being had to Ithe aceompanying drawings, which make a part of this spcciiication, in which- Figure l is a front elevation of the pump and its connections; and Fig. 2 is a Vertical cross action of the saine, the saine letters having reference to like parts in both figures.

The nature of our invention consists in operatin g7 b y means of a double crank, two Valvepistons in one cxlilinder, one piston-rod being hollow and the other solid7 and working inside ol and through the hollow rod, the double crank being so constructed and connected to the piston-rods as to give the pistons niotion in opposite directions when the crank is re rolved, thereby producin g, in a direct and siniplc forni, a double-actingr pump with straight waterways, and consequentlyv of superior power. v

The construction is as follows: A is the pump-cylinde'r7 in which we arrange two pistons, l and C, attached to and operated by means of a hollow rod, l), and rod E, passing' through said hollow rod, said rods respect ively being connected by rods F G to double cranks ll I, or eceentrics, or their equivalents, which are constructed and arranged to give motion to the pu1nppistons in opposite directions, and consequently producing a double acting pump, the pistons having suction and discharge alternatelyY and uniform motion by means of the double cranks. The water passes through openings ay ci in t-he respective pistons, which are closed by ralveplates l) l). Then the pump is at rest, the water is retained in the saine by means oi the foot- Valve J. u

Having thus described our improved pulup, what we clai 1n is- The two pistons operating in one cylinder by means of the two piston-rods, one passing through the other, combined with and operated by the double cra-nk7 in the nia-nner and for the purpose set forth.

LYSANDER BUT' TON. ROBERT BLAKE.

Witnesses:

E. L. BRUNDAGE, E. BUTTON. 

